Attention, eye tracking and schizophrenia.

  title={Attention, eye tracking and schizophrenia.},
  author={William Acker and Brian Toone},
  journal={The British journal of social and clinical psychology},
  volume={17 2},
  • W. Acker, B. Toone
  • Published 1 June 1978
  • Psychology, Medicine
  • The British journal of social and clinical psychology
Two experiments are reported. The first experiment successfully replicated the finding that Smooth Pursuit Eye-Tracking(SPET) performance recorded using electronsystagmographic techniques statistically differentiates between groups of clinically diagnosed shizophrenic patients and normal controls. Ratings taken of spontaneous patient behaviour during testing indicated that behaviour which on a priori grounds was thought to preclude optimum attention to eye tracking was related to greater… 
Smooth-pursuit eye movement dysfunction in schizophrenia: the role of attention and general psychomotor dysfunctions
It was concluded that in schizophrenic patients attentional factors (distraction) may contribute to eye-tracking impairment, and that the impairment may be viewed as an aspect of general motor dysfunctions.
Eye tracking dysfunction in schizophrenia: characterization of component eye movement abnormalities, diagnostic specificity, and the role of attention.
It is indicated that impaired pursuit eye movements are a major cause of eye tracking impairments in schizophrenia, that tracking dysfunctions commonly occur in affective psychoses, and that markedly high rates of catch-up saccades during eye tracking may be specific to schizophrenia.
Dissociation of smooth-pursuit and saccadic eye tracking in remitted schizophrenics. An ocular reaction time task that schizophrenic perform well.
Twenty-four schizophrenic outpatients in remission were compared with 21 medical outpatient controls on tasks designed to evaluate smooth pursuit of different frequency sinusoidal targets, saccadic
Smooth pursuit impairment in schizophrenia--what does it mean?
  • S. Levin
  • Psychology, Medicine
    Schizophrenia bulletin
  • 1983
The results rule out a generalized motor or oculumotor dysfunction, as well as a specific pursuit system dysfunction, and are consistent with a cortical dysfunction which results in saccadic disinhibition.
The effect of distraction on smooth pursuit eye movements: comparison of normal subjects with schizophrenic patients
Smooth pursuit eye movements (SPEM) made in response to 15°/s and 30°/s targets were studied in schizophrenic patients (DSM III-R and ICD 10 criteria) and normal controls using infrared
Eye movement dysfunctions in psychiatric patients: a review.
Eye tracking pattern appears to be under genetic control and some impairments may reflect a predisposition to functional psychosis, and the study of other oculomotor functions suggests that the locus of the central nervous system disruption is above the brainstem.